!306 fixed format and english and Chinese version weblink

* Description:[fix] add english version for readme weblink

README-EN.MD → README-EN.md

 # OpenHarmony Community
 Welcome to the OpenHarmony community.
 
+English | [简体中文](./README.md)
+
 ## Introduction
 The **community** repository stores the following content:
 
 - Community Governance Organizational Structure
     - [Project Management Committee](/zh/pmc.md)
 - [Contributing to the Community](https://gitee.com/openharmony/docs/blob/master/en/contribute/Readme-EN.md)
-- [CLA for Contributing to the Community](/cla)
-- Communications in the Community
+- [Contributor Agreement for Contributing to the Community](https://dco.openharmony.io/sign/Z2l0ZWUlMkZPcGVuQXRvbQ==)
+- [Communications in the Community](https://gitee.com/openharmony/docs/blob/master/en/contribute/communication-in-community.md)
 - [Responses to Security Issues](https://gitee.com/openharmony/security)
 - [Project Logo](/logo)
 

README.md

 # OpenHarmony Community
 欢迎来到OpenHarmony社区！
 
+简体中文 | [English](./README-EN.md)
+
 ## 介绍
 Community仓库用于管理OpenHarmony社区治理、开发者贡献指南、开发者贡献协议、社区交流等内容。
 

sig/README-EN.MD → sig/README-EN.md

 # SIG Management Regulations
+English | [简体中文](./README.md)
+
 ## Background
 Under the guidance of the Project Management Committee (PMC), a special interest group (SIG) designs the architecture, develops open capabilities, and performs maintenance for innovative projects in a specific domain.
 This repository stores information about all the SIGs in the OpenHamony community.

sig/README.md

 # SIG管理章程
+简体中文 | [English](./README-EN.md)
+
 ## 背景
 1. SIG（Special Interest Group）是指特别兴趣小组，SIG在PMC项目管理委员会指导下，负责OpenHarmony社区特定子领域及创新项目的架构设计、开源开发及项目维护等工作。
 2. 为了便于OpenHarmony开源社区工作开展和交流，默认将其划分为23个初始的SIG小组：[Maps_Sigs_Subsystem](./sigs_subsystem_list.md)。